Flickering Lights Signal Terror as a Woman Transforms

Young Korean woman wearing a fitted  blue crop top and white shorts waits alone at a quiet underground parking garage; security guard watches from a booth.
Parking lights flicker; her head slowly turns toward a distant sound.
She suddenly jerks violently; guard notices her strange movements and steps back.
She drops her bag, collapses beside a parked car, then suddenly goes completely still.
She rises slowly with blank eyes, unnatural posture and twitching hands.
Guard locks the booth door and desperately reaches for the emergency phone.
She suddenly sprints toward the booth; camera shakes as the guard backs away.
 She slams against the booth glass and snarls while the guard struggles to escape through the rear door.
 Guard runs between parked cars as the creature follows rapidly behind him.
 A resident exits an elevator, sees the chase and freezes in confusion.
The creature turns toward the resident and suddenly charges across the garage.
 Resident grabs a shopping cart and pushes it toward the creature, briefly slowing it down.
The creature climbs over the cart and continues chasing while the resident runs toward the exit ramp.
 Security guard activates the garage sprinkler system; water suddenly pours from above.
The soaked creature recoils beneath the flashing emergency lights, momentarily disoriented.
 Resident pulls down a metal security shutter, trapping the creature on the other side.
The creature violently slams against the shutter as everyone watches from a distance.
The shutter suddenly bends upward and the creature crawls underneath it.
 Everyone runs toward the building entrance while the creature rapidly follows.
The creature reaches the glass exit door and smashes against it as the lights flicker.
The glass door cracks and breaks; the creature disappears into the dark street outside.
 Residents stand frozen inside the entrance, staring into the empty rainy street; camera slowly turns toward the flickering garage lights.
STYLE: Ultra-realistic Korean apartment-building parking garage horror, claustrophobic handheld camera, fluorescent flickering lights, wet concrete reflections, realistic creature movement, tense pacing, natural motion blur, subtle camera shake, cinematic but believable, no gore, no blood, no explicit injuries, no subtitles, no watermark, no CGI look.